public class StringBufferDemo {
    public static void main(String[] args) {
        StringBuffer buffer = new StringBuffer();
        	buffer.append('S');
        	buffer.append("tringBuffer");
        	System.out.println(buffer.charAt(1));
        	System.out.println(buffer.capacity());
        	System.out.println(buffer.indexOf("tring"));
        	System.out.println("buffer = " + buffer.toString());
    }
}
